Liams



(NoModeL) H. J. WILLI AMS.

Bench Hook.

No. 232,094. Patented Sept. 7,1880.

WITNESSES INVBNTOR l 'd' u/ W UNITED STATES.

PATENT OFFICE.

HUMPHREY J. WILLIAMS, OF NEW YORK MILLS, NEW YORK.

BENCH-HOOK.

SPECIFICATION formingpart of Letters Patent No. 232,094, dated September7, 1880.

Application filed June 18, 1880.

To all whom it may concern Be it known that I, HUMPHREY J. WIL- LIAMS,of New York Mills, in the county of Oneida and State of New York, haveinvented a new and Improved Bench-Hook, of which the following is aspecification.

The object of this invention is to provide a carpenters bench-hook thatcan be more easily set in position, adjusted, and removed, and is moredurable than those now in use, and be firmer in the bench when in use.

The invention consists, essentially, of a tubular shell carrying atoothed plate on its top, set at right angles thereto, said shell beinglongitudinally divided into two sections, that inclose an eccentricallyor cam threaded rod or screw, by means of which the said sections arespread apart.

Figure 1 is a vertical sectional elevation of the device in position.Fig. 2 is a cross-section of the same on line a; .r, Fig. 1.

Similar letters of reference indicate corresponding parts.

In the drawings, A A represent, respectively, the semitubularlongitudinal sections of the bench-hook A, each section A A having onits top a toothed section, b b, respectively, of the horizontal plate B,and each section A A is provided exteriorly with a longitudinal flangeor web, 0, extending nearly its whole 7 length, -and designed to holdthe said benchhook from turning in the bench O,into which it isinserted. Interiorly each section A A is provided with asemicircularshoulder, d, to hold the rod or screw D up in position, andwith a series of short studs, ff, arranged one above the other, those inthe one section being opposite the intervals between those in the othersection, and designed to serve as stops to prevent the turning of thescrew D in the wrong direction,and to serve also as bearing-points forthe cams or eccentric threads 9 g of the said rod or screw D, which camsor eccentric threads 9 g are arranged with their (No model.)

shoulders o alternating on opposite sides of the rod or screw D. Whensetin position the collar h of the screw D rests on and above theshoulders cl of the semi-tubular sections A A, while the cams oreccentric threads g g bear against the studs f f, so that when the rodor screw D is turned in one direction the sections A A will be separatedby the pressure of the swells of the cams gg upon the studs ff with theeffect of tightening the said bench-hook A in position, and if the saidscrew or rod D be turned in the opposite direction the sections A A ofthe said bench hookA may be brought together again, so that saidbench-hookA can be moved and adjusted at will. i

A wrench or lever, E, attached at m to the lower end of the rod or screwD, serves as a handle whereby to turn said rod or screw D.

This device can be raised or lowered, taken from the bench and reset,without the use of hammer, screw-driver, or other tool, and is adaptedto a bench of any thickness.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. As an improved article of manufacture, abench hook constructed substantially as herein shown and described,consisting of the semi-tubular sections A A, provided with exterior websor flanges, c c, and interior studs, f f, sectional toothed plate B, androd or screw D, provided with cams or eccentric threads g g, as setforth.

2. In benchhooks, the combination, with screw D, havingeccentric threadsg, of the interior shoulders, d, and studs f, the latter arranged oneabove another, and those in one section opposite the intervals betweenthose in the other section, as and for the purpose specified.

- HUMPHREY J. WILLIAMS.

Witnesses:

Rev. EDWARD R. HUGHES, J OHN M. WHITNEY.

